Hello.. recently I was using my computer, everything working perfectly.. then my cursor sticks-froze-won't move. I tried to reboot but the cursor is stuck in same place on the screen. I checked all connections on my Logitech optical mouse, new batteries, etc. Then I reinstalled the mouseware, to no avail. I have never seen anything like this and it is hard to troubleshoot (for me anyway) without the use of the mouse. I do not know what to do now. I can't even begin to guess what has happened here. Anyone who can suggest? I am thinking of taking the Logitech optical mouse back for a replacement. but I still don't know what is best here. Help, please anyone. Thank you kindly.